Step-Core-drill的意思|示意

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Step-Core-drill的网络常见释义

钻 ... core-drill sampling 钻取岩心 Step-Core-drill 钻-扩一体复合钻头 double core-barrel drill 双岩心管钻探 ...

Step-Core-drill相关短语

1、 drilling with step core drill 阶梯扩孔

2、 counterboring with step core drill 阶梯扩孔